Cabinet type laser direct deposition system capable of achieving real-time variable-ratio variable-speed coaxial powder supply

Abstract

The invention relates to a cabinet type laser direct deposition system capable of achieving real-time variable-ratio variable-speed coaxial powder supply. Except for auxiliary equipment and parts, such as a water cooling machine and an air source, which must keep a certain distance from a main machine, all mechanisms and parts such as a mixed powder coaxial supply mechanism, a control subsystem, a laser, an optical subsystem, a working box, a working head, a movement subsystem, a vacuumizing and protective gas circulation subsystem and a monitoring subsystem are integrally installed in a machine cabinet. In the working process of the system, the mixed powder coaxial feeding mechanism is controlled to feed various kinds of heterogeneous powder on time to different parts of a workpiece in the working box which is arranged at the lateral lower portion of the mixed powder coaxial feeding mechanism and is protected by circulating gas after vacuumizing in real time in a variable-ratio and variable-speed manner, and the laser power and the movement speed of each shaft of the movement subsystem are properly adjusted, so that required materials are deposited on all parts of the workpiece. The cabinet type laser direct deposition system has the beneficial effects that the whole device is small in occupied area, the oxidation prevention effect is good, powder adjustment lag is reduced, and diversity of internal materials of products can be achieved.

Description

technical field [0001] The cabinet-type laser direct deposition system capable of real-time variable ratio and variable-speed coaxial powder supply belongs to the field of manufacturing, and specifically relates to a cabinet-type equipment system for coaxial powder supply laser direct deposition manufacturing. Background technique [0002] Laser direct deposition is also called laser cladding. At present, laser direct deposition equipment is more and more widely used, especially with the rise of additive manufacturing (3D printing) and remanufacturing, laser direct deposition equipment has developed rapidly. The earliest appeared was the preset powder laser cladding equipment (the preset powder was separated from the laser cladding equipment), which was used for surface modification at that time, and then the lateral powder feeding and coaxial powder feeding laser cladding equipment were gradually used for repairing Remanufacturing, additive manufacturing. At present, ther...

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Problems solved by technology

The current oxygen isolation work box is generally rebuilt on the basis of the original CNC machine tool, which is bulky, has a low effective utilization rate, and is difficult to isolate oxygen

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